Electric reactor iron core structure and electric reactor
By designing protruding parts of the air gap plate and open structures in the middle clamping plates in the reactor core structure, the stability and reliability issues of the core structure are solved, noise and vibration are prevented, and the operating performance and safety of the reactor are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO YUNLU MAGNETIC INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-12
AI Technical Summary
The existing reactor core structure has tolerances in the stacking of silicon steel sheets and the machining tolerances in the length of the air gap plate. This results in the silicon steel sheets at the front and rear ends not being blocked by the air gap plate when the iron disc is stacked with the air gap plate, which causes problems such as noise, vibration and damage to the insulation layer during long-term operation.
The air gap plate is designed with protrusions on the outside of the silicon steel sheet and holes in the middle clamping plate, so that the protrusions are embedded in the middle clamping plate. This ensures that the front and rear ends of the two iron disc structures are completely blocked by the air gap plate and a stable connection is achieved by adhesive fixation.
It improves the reliability and stability of the reactor core structure, prevents noise and vibration, and enhances the overall performance and safety of the equipment.
Smart Images
Figure CN224232457U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reactor technology, specifically to a reactor core structure and a reactor. Background Technology
[0002] A reactor is an electrical device used to limit current and compensate for reactive power, and its core component is the iron core. The structure of the iron core has a significant impact on the performance of the reactor.
[0003] The core of a reactor is typically composed of stacked silicon steel sheets and air gap plates. Silicon steel sheets are the main material of the reactor core, characterized by high permeability and low loss. Silicon steel sheets are usually machined into rectangular or square shapes. Several silicon steel sheets are stacked into a disc, and air gap plates are stacked between any two adjacent discs to form the core column.
[0004] Currently, the core column commonly used in reactors has limitations due to the tolerances in the stacking of silicon steel sheets and the machining tolerances in the length of the air gap plate. When the iron disc and the air gap plate are stacked, the silicon steel sheets at the front and rear ends may not be blocked by the air gap plate. The core adhesive on the air gap plate cannot firmly bond these silicon steel sheets together. As a result, after the reactor is subjected to vibration and aging under the influence of the magnetic field during long-term operation, the sheets become misaligned and "connected," causing noise and abnormal vibration. In severe cases, it can damage the insulation layer and cause local circulating current, leading to the burnout of the core column. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of the existing technology by providing a reactor core structure and a reactor.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] The first aspect of this utility model provides a reactor core structure, comprising:
[0008] Silicon steel sheet: Multiple silicon steel sheets of the same size are stacked into a disc structure;
[0009] Air gap plate: disposed between two adjacent iron disc structures, stacked with the iron disc structures to form an iron core, including a main body and a protrusion disposed at least on one side edge of the main body; the size of the main body is the same as the size of the silicon steel sheet, after the air gap plate is stacked with the iron disc structure, the protrusion is located outside the silicon steel sheet, and the length of the protrusion is less than the length of its edge.
[0010] Middle clip: disposed on at least one side of the iron core body in the height direction, including the side where the protrusion is located; an opening is provided in the part of the middle clip that mates with the protrusion, and the protrusion passes through the opening.
[0011] In conjunction with the first aspect, in some embodiments of this utility model, the air gap plate is rectangular, the protrusion is located on the opposite two side edges of the air gap plate, and each side where the protrusion is located is provided with a middle clip.
[0012] In conjunction with the first aspect, in some embodiments of this utility model, the protrusion is located at the edge of the air gap plate in the width direction.
[0013] In conjunction with the first aspect, in some embodiments of this utility model, the opening is arranged along the height direction of the middle clip, and the height of the opening can cover all the protrusions of the air gap plate.
[0014] In conjunction with the first aspect, in some embodiments of this utility model, the width of the protrusion is less than or equal to the thickness of the middle clip, so that the protrusion does not exceed the space defined by the opening.
[0015] In conjunction with the first aspect, in some embodiments of this utility model, the length of the protrusion is equal to the width of the opening.
[0016] In conjunction with the first aspect, in some embodiments of this utility model, the protrusion is parallel to the surface of the air gap plate.
[0017] In conjunction with the first aspect, in some embodiments of this utility model, the silicon steel sheets are fixed together, the iron disc structure is fixed to the air gap plate, and the middle clamp is fixed to the iron core body by adhesive.
[0018] The second aspect of this application provides a reactor, including the reactor core structure provided in the first aspect of this application.
[0019] Compared with the prior art, the technical advantages of the reactor core structure and reactor provided by this utility model are as follows:
[0020] The air gap plate features a protruding design with an embedded opening in the middle clamping plate, ensuring that the front and rear ends of the two iron disc structures are completely blocked by the air gap plate. Even with dimensional tolerances between the stacked iron disc structures and the air gap plate, the air gap can still effectively block the silicon steel sheets at the adjacent ends. This structure solves the problem of connecting the front and rear ends of the two structures, improves the overall reliability and stability of the structure, and provides strong support for the performance improvement of related equipment. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of a stacked silicon steel sheet disc structure in the prior art, as described in this application embodiment;
[0023] Figure 2 This is a schematic diagram of the air gap plate structure in the prior art of this application embodiment;
[0024] Figure 3 This is a schematic diagram of the stacked structure of silicon steel sheets and air gap plates in the prior art of this application embodiment;
[0025] Figure 4 This is a schematic diagram of the core structure in the prior art as described in this application embodiment;
[0026] Figure 5 This is a schematic diagram of the air gap plate structure in an embodiment of this application;
[0027] Figure 6 This is a schematic diagram of the assembly of the air gap plate and the iron disc structure in an embodiment of this application;
[0028] Figure 7 This is a first-view structural diagram of the iron core structure assembly in the embodiments of this application;
[0029] Figure 8 This is a schematic diagram of the core structure assembly from a second perspective in an embodiment of this application;
[0030] In the above figures:
[0031] 1. Discus structure;
[0032] 2. Air gap plate; 201. Main body; 202. Protrusion;
[0033] 3. Middle clamping part, 301, opening. Detailed Implementation
[0034] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0035] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0038] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0039] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.
[0040] Reference for reactor core structure in existing technology Figures 1 to 3 Multiple silicon steel sheets of the same size are stacked to form a disc structure 1. Each complete reactor core column includes multiple disc structures 1. Typically, the silicon steel sheets are rectangular, and the stacked disc structure 1 is a cuboid structure with a certain height. Figure 1 This is a schematic diagram of a disc structure 1 made of stacked silicon steel sheets.
[0041] Air gap plate 2 is disposed between two adjacent iron disc structures 1. The structure of air gap plate 2 is referenced below. Figure 2 Its structure is the same as that of silicon steel sheets, also being a rectangular plate. After the air gap plate 2 and the iron disc structure 1 are assembled, their edges are aligned, and the air gap plate 2 serves to isolate the air gap. After the air gap plate 2 and the iron disc structure 1 are assembled, the iron core body is then fixed on the side by the middle clamp 3. Assembly structure reference. Figure 3 .
[0042] Ideally, the area and dimensions of the air gap plate 2 are the same as those of the silicon steel sheets. After assembly, the edges of each silicon steel sheet are aligned, and the edge of the air gap plate 2 is exactly aligned with the edge of the iron disc structure 1. The width of the clamping piece 3 is equal to the width of the air gap plate 2 and the silicon steel sheet, and its height is equal to the height of the entire iron disc structure 1. However, in the current technology, due to processing tolerances and assembly tolerances, it is difficult to achieve dimensional matching, resulting in tolerances in the stacking of the iron discs and processing tolerances in the length of the air gap plate. When the iron disc and the air gap plate are stacked, the silicon steel sheets at the front and rear ends may not be blocked by the air gap plate, and the core adhesive on the air gap plate 2 cannot firmly bond these silicon steel sheets. As a result, after the reactor has been running for a long time, it has been subjected to magnetic field vibration and aging, and the sheets have become misaligned, causing "connection", resulting in noise and abnormal vibration. In severe cases, it can damage the insulation layer and cause local circulating current, leading to the burnout of the central core.
[0043] To solve the above problems, the first aspect of this utility model provides a reactor core structure, the structure of which is referenced Figures 4 to 8 .
[0044] The main body of the discus structure 1 is the same as that of the prior art, consisting of multiple silicon steel sheets of the same size stacked together.
[0045] Air gap plate 2 is placed between two adjacent iron disc structures 1 and stacked with the iron disc structures 1 to form an iron core.
[0046] The structural reference of the air gap plate 2 provided in the embodiments of this application Figure 4It includes a main body 201 and a protrusion 202 provided at least on one side edge of the main body 201; the size of the main body 201 is the same as the size of the silicon steel sheet, and after the air gap plate 2 and the iron disc structure are stacked, the protrusion 202 is located outside the silicon steel sheet, and the length of the protrusion 202 is less than the length of its edge.
[0047] The middle clamp 3 is disposed on at least one side of the iron core body in the height direction, covering the side including the protrusion 202; an opening 301 is provided in the part where the middle clamp 3 and the protrusion 202 cooperate, and the protrusion 202 passes through the opening 301.
[0048] The silicon steel sheets are fixed together, the iron disc structure 1 is fixed to the air gap plate 2, and the middle clamping plate 3 is fixed to the iron core body by adhesive.
[0049] In this embodiment, a protruding structure is designed based on the basic length of the air gap plate 2. It should be understood that the dimensions of the main body 201 are the same as the dimensions of the silicon steel sheet, meaning that both have the same length and width, ensuring that the length and width sides are aligned after assembly. The protruding part 202 defined in this embodiment is an additional plate structure formed along the side edge of the air gap plate 2. For example, if the air gap plate 2 is a regular rectangular plate, the protruding part 202 will change it from a regular rectangular plate structure. The protruding part 202 is preferably of the same thickness as the main body 202 of the air gap plate 2 and extends parallel to the main body 202. It is preferably located on one side of the air gap plate 2 in the width direction.
[0050] An opening 301 structure is made on the middle clip 3 to accommodate the size of the protrusion 202 of the air gap plate 2.
[0051] In this embodiment, because the protrusion 202 of the air gap plate 2 is embedded in the middle clip 3, the front and rear ends of the two sections of the iron disc structure 1 are completely blocked by the air gap plate. Even if there are dimensional tolerances between the stacked iron disc structure 1 and the air gap plate 2, the air gap can still effectively block the silicon steel sheets at the adjacent ends. This structure solves the problem of the connection between the front and rear ends of the two sections of the structure 1, improves the reliability and stability of the overall structure, and provides strong support for the performance improvement of related equipment.
[0052] In some embodiments, in order to achieve air gap blocking and isolation in multiple directions, the air gap plate 2 is rectangular, and the protrusions 202 are located on opposite sides of the air gap plate 2, and on both sides in the width direction, that is, on both sides where the middle clamping plate 3 is installed. Normally, the middle clamping plate 3 is set on both sides in the width direction of the iron core. Since the iron core surface needs to be kept flat on the two sides where the middle clamping plate 3 is not set, it is not easy to design a protruding structure on the air gap plate 2 on these two sides.
[0053] In some embodiments, the opening 301 is provided along the height direction of the middle clamping piece 3, and the height of the opening 301 is sufficient to cover all the protrusions 202 of the air gap plate 2. The opening 301 is positioned along the height direction of the middle clamping piece 3, and its height is designed to completely cover the protrusions 202 of the air gap plate 2 in that direction. The height of the opening 301 ensures that the protrusions 202 are fully accommodated in their height direction, thereby preventing any protrusions 202 from exceeding the defined range of the opening 301 during assembly, ensuring the fixation of the iron core while solving the air gap problem.
[0054] In some embodiments, the width of the protrusion 202 is less than or equal to the thickness of the middle clip 3, so that the protrusion 202 does not exceed the space defined by the opening 301. The thickness referred to here is the thickness of the middle clip 3. The width of the protrusion 202 is designed to be less than or equal to the thickness of the middle clip 3. In some embodiments, the length of the protrusion 202 is equal to the width of the opening 301. This dimensional relationship means that when the protrusion 202 is inserted into the opening 301, it will not exceed the space defined by the opening 301. This ensures the overall flatness of the assembled core structure.
[0055] In the aforementioned implementation structure, to ensure that the protrusion 202 of the air gap plate 2 can be stably and accurately embedded in the opening 301 of the middle clamping piece 3, the dimensions of the opening 301 and the protrusion 202 of the air gap plate 2 were designed to ensure that the protrusion 202 can be stably positioned in the opening 301, thereby achieving a reliable fit between the air gap plate 2 and the middle clamping piece 3. This design not only improves the stability and reliability of the entire structure but also provides strong support for the efficient operation and maintenance of the equipment.
[0056] A second aspect of this application provides a reactor, including the reactor core structure provided in the first aspect of this application. Using the core structure provided in the first aspect of this application in a reactor can better solve the problem of air gap leakage and improve the performance of the reactor product.
[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A reactor core structure, characterized in that, include: Silicon steel sheet: Multiple silicon steel sheets of the same size are stacked into a disc structure; Air gap plate: disposed between two adjacent iron disc structures, stacked with the iron disc structures to form an iron core, including a main body and a protrusion disposed at least on one side edge of the main body; the size of the main body is the same as the size of the silicon steel sheet, after the air gap plate is stacked with the iron disc structure, the protrusion is located outside the silicon steel sheet, and the length of the protrusion is less than the length of its edge. Middle clip: disposed on at least one side of the iron core body in the height direction, including the side where the protrusion is located; an opening is provided in the part of the middle clip that mates with the protrusion, and the protrusion passes through the opening.
2. The reactor core structure as described in claim 1, characterized in that, The air gap plate is rectangular, and the protrusion is located on the opposite two sides of the air gap plate. Each side of the protrusion is provided with a middle clip.
3. The reactor core structure as described in claim 1 or 2, characterized in that, The protrusion is located at the edge of the air gap plate in the width direction.
4. The reactor core structure as described in claim 1, characterized in that, The opening is positioned along the height of the middle clip, and the height of the opening is sufficient to cover all the protrusions of the air gap plates.
5. The reactor core structure as described in claim 1 or 4, characterized in that, The width of the protrusion is less than or equal to the thickness of the middle clip, so that the protrusion does not exceed the space defined by the opening.
6. The reactor core structure as described in claim 1 or 4, characterized in that, The length of the protrusion is equal to the width of the opening.
7. The reactor core structure as described in claim 1, characterized in that, The protrusion is parallel to the surface of the air gap plate.
8. The reactor core structure as described in claim 1, characterized in that, The silicon steel sheets are fixed together, the iron disc structure is fixed to the air gap plate, and the middle clamp is fixed to the iron core body by adhesive.
9. A reactor, characterized in that: Includes the reactor core structure as described in any one of claims 1 to 8.